43688625425 has 48 divisors (see below), whose sum is σ = 56881478400. Its totient is φ = 33281801280.

The previous prime is 43688625391. The next prime is 43688625439. The reversal of 43688625425 is 52452688634.

It is not a de Polignac number, because 43688625425 - 2¹² = 43688621329 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48167822 + ... + 48168728.

It is an arithmetic number, because the mean of its divisors is an integer number (1185030800).

Almost surely, 2^43688625425 is an apocalyptic number.

It is an amenable number.

43688625425 is a deficient number, since it is larger than the sum of its proper divisors (13192852975).

43688625425 is an frugal number, since it uses more digits than its factorization.

43688625425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1020 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 53.

The spelling of 43688625425 in words is "forty-three billion, six hundred eighty-eight million, six hundred twenty-five thousand, four hundred twenty-five".